Answer:
You put a equal sign or if its one equation then put a addition or subtraction sign etc.
Step-by-step explanation:
Answer:
4 cm
Step-by-step explanation:

Answer:
3 tickets
Step-by-step explanation:
8x+3 = 9x
x = 3
Since the exponents is positive, move the decimal 7 places to the right, thus giving you 12090000
If in a fraction, the numerator or the denominator or both are fractions, then it is called a complex fraction.
Example 1:

Here, since the numerator is a fraction, it is a complex fraction.
Example 2:

Here, since the numerator and the denominator are fractions, it is a complex fraction.